<!DOCTYPE html>
<html>

<head>

    <title>Digital</title>
    <script>

    </script>

</head>



<body>
     <!-- <input type="checkbox" name = "options" value="giftwrap"
    onchange="order.options.giftwrap = this.checked" 
    > -->
    <!-- <script>
        function onchange(a){
            console.log(a);
        }
    </script> -->

     <!-- url中的Javascript -->
    <!-- <a href="javascript: new Date().toLocaleTimeString()">
        What time is it
    </a> -->

    <!-- <a href="javascript: alert(new Date().toLocaleTimeString())">
        What time is it
    </a> -->

    <!-- 打开一个窗口 -->
    <!-- <a href="javascript: void window.open('about:blank')">
        What time is it
    </a> -->

    <!-- 书签 -->
    <a href="javascript":
    
        var e ="",r="";     
        do {
            e = prompt("Expression:" +e + "\n" + r + "\n", e);
            try {
                r = "Result:" + eval(e);
               
            } catch(ex) {
                r = ex; 
            } 
        } while(e);
        void 0;
    > Javascript Evaluator</a>



</body>

</html>